initial addition of essential crypto, encoders, workflows and LLM instructions

pkg/crypto/ec/wire/blockheader.go

@@ -0,0 +1,25 @@
+package wire
+
+import (
+	"time"
+
+	"next.orly.dev/pkg/crypto/ec/chainhash"
+)
+
+// BlockHeader defines information about a block and is used in the bitcoin
+// block (MsgBlock) and headers (MsgHeaders) messages.
+type BlockHeader struct {
+	// Version of the block.  This is not the same as the protocol version.
+	Version int32
+	// Hash of the previous block header in the block chain.
+	PrevBlock chainhash.Hash
+	// Merkle tree reference to hash of all transactions for the block.
+	MerkleRoot chainhash.Hash
+	// Time the block was created.  This is, unfortunately, encoded as a
+	// uint32 on the wire and therefore is limited to 2106.
+	Timestamp time.Time
+	// Difficulty target for the block.
+	Bits uint32
+	// Nonce used to generate the block.
+	Nonce uint32
+}

pkg/crypto/ec/wire/msgblock.go

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+package wire
+
+// MsgBlock implements the Message interface and represents a bitcoin
+// block message.  It is used to deliver block and transaction information in
+// response to a getdata message (MsgGetData) for a given block hash.
+type MsgBlock struct {
+	Header       BlockHeader
+	Transactions []*MsgTx
+}

pkg/crypto/ec/wire/msgtx.go

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+package wire
+
+import (
+	"next.orly.dev/pkg/crypto/ec/chainhash"
+)
+
+// OutPoint defines a bitcoin data type that is used to track previous
+// transaction outputs.
+type OutPoint struct {
+	Hash  chainhash.Hash
+	Index uint32
+}
+
+// TxWitness defines the witness for a TxIn. A witness is to be interpreted as
+// a slice of byte slices, or a stack with one or many elements.
+type TxWitness [][]byte
+
+// TxIn defines a bitcoin transaction input.
+type TxIn struct {
+	PreviousOutPoint OutPoint
+	SignatureScript  []byte
+	Witness          TxWitness
+	Sequence         uint32
+}
+
+// TxOut defines a bitcoin transaction output.
+type TxOut struct {
+	Value    int64
+	PkScript []byte
+}
+
+// MsgTx implements the Message interface and represents a bitcoin tx message.
+// It is used to deliver transaction information in response to a getdata
+// message (MsgGetData) for a given transaction.
+//
+// Use the AddTxIn and AddTxOut functions to build up the list of transaction
+// inputs and outputs.
+type MsgTx struct {
+	Version  int32
+	TxIn     []*TxIn
+	TxOut    []*TxOut
+	LockTime uint32
+}

pkg/crypto/ec/wire/wire.go

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+// Package wire contains a set of data structure definitions for the bitcoin
+// blockchain.
+package wire
+
+// BitcoinNet represents which bitcoin network a message belongs to.
+type BitcoinNet uint32
+
+// Constants used to indicate the message bitcoin network.  They can also be
+// used to seek to the next message when a stream's state is unknown, but
+// this package does not provide that functionality since it's generally a
+// better idea to simply disconnect clients that are misbehaving over TCP.
+const (
+	// MainNet represents the main bitcoin network.
+	MainNet BitcoinNet = 0xd9b4bef9
+
+	// TestNet represents the regression test network.
+	TestNet BitcoinNet = 0xdab5bffa
+
+	// TestNet3 represents the test network (version 3).
+	TestNet3 BitcoinNet = 0x0709110b
+
+	// SimNet represents the simulation test network.
+	SimNet BitcoinNet = 0x12141c16
+)